Construction of High Tg Bipolar Host Materials with Balanced Electron-Hole Mobility Based on 1,2,4-Thiadiazole for Phosphorescent Organic Light-Emitting Diodes
文献类型：期刊论文
| 作者 | Jin, Jiangjiang1; Zhang, Wenzhi1; Wang, Bo1; Mu, Guanyuan1; Xu, Peng1; Wang, Lei1; Huang, Hong1; Chen, Jiangshan2; Ma, Dongge2 |
| 刊名 | CHEMISTRY OF MATERIALS
 |
| 出版日期 | 2014-04-08 |
| 卷号 | 26期号:7页码:2388-2395 |
| ISSN号 | 0897-4756 |
| DOI | 10.1021/cm403388s |
| 英文摘要 | A novel electron-transporting moiety, 1,2,4-thiadiazole, was first introduced to construct bipolar host molecules for phosphorescent organic light-emitting diodes (PhOLEDs). By incorporating 1,2,4-thiadiazole with typical hole-transporting carbazole moieties, a series of thiadiazole/carbazole hybrids, o-CzTHZ, m-CzTHZ, and p-CzTHZ, were synthesized. All the hybrids exhibit very high glass transition temperatures (T-g >= 167 degrees C) and show good thermal and morphological stability in films. Moreover, these host materials possess good bipolar charge transporting properties; electron and hole mobilities of these bipolar thiadiazole/carbazole hybrids can be tuned by simply adjusting the linkage modes between thiadiazole and carbazole moieties. The maximum external quantum efficiencies (eta(EQE), max) in the green PhOLEDs with o-CzTHZ, m-CzTHZ, and p-CzTHZ as the hosts reached 26.1%, 24.0%, and 22.9%, respectively, and their EQE were still over 20% even at the high luminance of 10,000 cd/m(2). This study demonstrates that 1,2,4-thiadiazole should be an excellent electron-transporting unit for bipolar phosphorescent hosts. |
| 语种 | 英语 |
| WOS记录号 | WOS:000334572300025 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/50917]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Wang, Lei |
| 作者单位 | 1.Huazhong Univ Sci & Technol, Sch Opt & Elect Informat, Wuhan Natl Lab Optoelect, Wuhan 430074, Hubei, Peoples R China 2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Jilin, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jin, Jiangjiang,Zhang, Wenzhi,Wang, Bo,et al. Construction of High Tg Bipolar Host Materials with Balanced Electron-Hole Mobility Based on 1,2,4-Thiadiazole for Phosphorescent Organic Light-Emitting Diodes[J]. CHEMISTRY OF MATERIALS,2014,26(7):2388-2395. |
| APA | Jin, Jiangjiang.,Zhang, Wenzhi.,Wang, Bo.,Mu, Guanyuan.,Xu, Peng.,...&Ma, Dongge.(2014).Construction of High Tg Bipolar Host Materials with Balanced Electron-Hole Mobility Based on 1,2,4-Thiadiazole for Phosphorescent Organic Light-Emitting Diodes.CHEMISTRY OF MATERIALS,26(7),2388-2395. |
| MLA | Jin, Jiangjiang,et al."Construction of High Tg Bipolar Host Materials with Balanced Electron-Hole Mobility Based on 1,2,4-Thiadiazole for Phosphorescent Organic Light-Emitting Diodes".CHEMISTRY OF MATERIALS 26.7(2014):2388-2395. |
入库方式： OAI收割
来源：化学研究所
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